Cartridge based breath alcohol calibration device
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United States of America Patent
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Dec 8, 2015
Grant Date -
Jun 25, 2015
app pub date -
Jun 27, 2013
filing date -
Jun 27, 2012
priority date (Note) -
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Abstract
A calibration device for a breath alcohol testing device includes a pump providing a controlled air flow at a predetermined rate, a chamber in fluid communication with the pump that receives the air flow from the pump, and an outlet opening in fluid communication with the chamber that allows the air flow to exit the chamber in which the chamber and/or outlet opening can be heated to a predetermined maintainable temperature during operation of the pump. The calibration device is releasably connected to or brought in fluid communication with a breath alcohol testing device such that the air flow exiting the outlet opening passes into the testing device. The calibration device receives a sealed cartridge containing a predetermined alcohol concentration in the chamber and further includes a lid for opening/closing the chamber wherein the cartridge can be pierced such that the air flow provided by the pump to the chamber will pass through the cartridge.
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